990147125

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{239}}^1$

素因数の和:419

約数の個数: 64

約数和(自身を含む): 1423319040

約数和(自身を除く): 433171915

約数列:

[1, 5, 11, 23, 25, 55, 115, 125, 131, 239, 253, 275, 575, 655, 1195, 1265, 1375, 1441, 2629, 2875, 3013, 3275, 5497, 5975, 6325, 7205, 13145, 15065, 16375, 27485, 29875, 31309, 31625, 33143, 36025, 60467, 65725, 75325, 137425, 156545, 165715, 180125, 302335, 328625, 344399, 376625, 687125, 720107, 782725, 828575, 1511675, 1721995, 3600535, 3913625, 4142875, 7558375, 7921177, 8609975, 18002675, 39605885, 43049875, 90013375, 198029425, 990147125]

約数ペア:

[(1, 990147125), (5, 198029425), (11, 90013375), (23, 43049875), (25, 39605885), (55, 18002675), (115, 8609975), (125, 7921177), (131, 7558375), (239, 4142875), (253, 3913625), (275, 3600535), (575, 1721995), (655, 1511675), (1195, 828575), (1265, 782725), (1375, 720107), (1441, 687125), (2629, 376625), (2875, 344399), (3013, 328625), (3275, 302335), (5497, 180125), (5975, 165715), (6325, 156545), (7205, 137425), (13145, 75325), (15065, 65725), (16375, 60467), (27485, 36025), (29875, 33143), (31309, 31625)]